UI – Restore user's current scroll after updating the host software filter (#24455)

## #23095 


https://github.com/user-attachments/assets/90640987-e06f-432c-9fd2-765753ac1d73

- [x] Changes file added for user-visible changes in `changes/`
- [x] Manual QA for all new/changed functionality

---------

Co-authored-by: Jacob Shandling <jacob@fleetdm.com>

changes/23095-host-sw-scroll

@@ -0,0 +1 @@
+- Restore the user's previous scroll, if any, when they change the filter on the host software table.

frontend/pages/hosts/details/cards/Software/HostSoftwareTable/HostSoftwareTable.tsx

@@ -102,6 +102,13 @@ const HostSoftwareTable = ({
         routeTemplate,
         queryParams: newParams,
       });
+      const prevYScroll = window.scrollY;
+      setTimeout(() => {
+        window.scroll({
+          top: prevYScroll,
+          behavior: "smooth",
+        });
+      }, 0);
       router.replace(nextPath);
     },
     [pathPrefix, routeTemplate, router, searchQuery, sortDirection, sortHeader]